Java J2EE Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Core Java (6529)
Advanced Java (552)
Swing (223)
EJB (402)

Servlets (804)
Struts (701)
JDBC (771)
JMS (324)

SunOne (10)
J2EE (485)
Weblogic (694)
Websphere (573)

Java J2EE Interview Questions

Questions Answers Views Company eMail

what is the purpose of using rmisecuritymanager in rmi?

989

What is the tradeoff between using an unordered array versus an ordered array?

1254

Why we override equals() method?

1055

What is the advantage of preparedstatement over statement?

1128

What is the default size of load factor in hashing based collection?

1070

What is difference between jdk,jre and jvm?

1145

What is the difference between processes and threads?

1069

What is the main difference between java platform and other platforms?

1123

What is the difference between sleep and wait in java?

979

Explain java heap space and garbage collection?

1091

What is meant by binding in rmi?

1032

Can we call the run() method instead of start()?

1057

How do weakhashmap works?

1170

What is the purpose class.forname method?

983

What are the features of junit?

1061

Un-Answered Questions { Java J2EE }

Are maps ordered java?

977

What is defined as false sharing in the context of multithreading?

1059

Is odbc an api?

1067

How to find out certain server configuration details like port no, server name, node name, pid?

854

What is the advantage of using entity bean for database operations, over directly using jdbc api to do database operations?

1025

What is the purpose of an orm?

462

How does the java compiler work?

1011

What are the Core classes of Struts Framework?

1035

What is spring language?

405

When we can update the application? Is server up time or downtime?

1429

Why is dao used? : Spring Boot

430

How would you integrate spring and hibernate using hibernatedaosupport?

391

When servlet is loaded?

1092

What is the difference between @component and @controller?

547

What is composition in java?

1304

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